core-agent-linux/debian/qubes-core-agent.postinst
HW42 0d0261d1c1 improve update of /etc/hosts
* use 127.0.1.1 under debian (since it's the default there)
 * also set the IPv6 loopback address (::1) since some tools tries to
   AAAA resolve the hostname (for example sendmail)
 * ensure proper /etc/hosts format through postinst-script (hostname as
   last entry)
2014-09-29 05:25:32 +02:00

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# ensure that hostname resolves to 127.0.1.1 resp. ::1 and that /etc/hosts is
# in the form expected by qubes-sysinit.sh
for ip in '127\.0\.1\.1' '::1'; do
if grep -q "^${ip}\(\s\|$\)" /etc/hosts; then
sed -i "/^${ip}\s/,+0s/\(\s`hostname`\)\+\(\s\|$\)/\2/g" /etc/hosts
sed -i "s/^${ip}\(\s\|$\).*$/\0 `hostname`/" /etc/hosts
else
echo "${ip} `hostname`" >> /etc/hosts
fi
done
# remove hostname from 127.0.0.1 line (in debian the hostname is by default
# resolved to 127.0.1.1)
sed -i "/^127\.0\.0\.1\s/,+0s/\(\s`hostname`\)\+\(\s\|$\)/\2/g" /etc/hosts
#DEBHELPER#